What type of logging should Saria enable on her routers to analyze traffic between network segments?

Flow logging is the correct choice for analyzing traffic between network segments because it records metadata about the flow of data across the network. This includes information such as source and destination IP addresses, ports, and the amount of data transmitted, rather than the actual packet contents. This metadata helps in understanding traffic patterns, identifying anomalies, and providing insights into the usage of bandwidth and application performance within the network segments.

Flow logging is particularly useful in environments where deep packet inspection is not feasible due to performance concerns or privacy issues, allowing Saria to monitor and analyze traffic behavior without capturing and storing entire packet contents. It aids in detecting unauthorized access and ensuring compliance with policy enforcement by enabling visibility into how different parts of the network are interacting.

The other types of logging, while useful in their ways, do not provide the same level of insight for traffic analysis between network segments. Packet logging focuses on storing the full contents of network packets, which can be more resource-intensive and is generally used for forensic analysis rather than real-time traffic monitoring. Event logging keeps track of specific events that occur, such as configuration changes or errors, which may not give a comprehensive view of the traffic flow. Session logging pertains to a specific sequence of interactions between two endpoints, often not capturing broader traffic patterns